Exhausted-head.



PATENTED NOV. 8, 1904.

F. M. OVERHOLT. EXHAUST HEAD. APPLICATION FILED NOV. 24, 1903.

N0 MODEL.

T {a Na 1, lfl u m y me UNITED STATES Patented November 8, 1904.

FRANK M. OVER-HOLT, OF MINNEAPOLIS, MINNESOTA.

EXHAUST-HEAD.

SPECIFICATION forming part of Letters Patent No. 774,531, dated November8, 1904,

Application filed November 24, 1903 Serial No. 182,440. (No model.)

To all whom, it may concern.-

Be it known that I, FRANK M. OVERHOLT, of Minneapolis, Hennepin county,Minnesota, have invented certain new and useful Improvements inExhaust-Heads, of which the follow ing is a specification.

This invention relates to exhaust-heads adapted to be placed at the endof an exhaustpipe that projects above the roof of a building; and theobject of the invention is to provide means for removing the water ofcondensation to the end that the steam discharged from the head will bepractically dry and there will he no drippings to rot the roof in summerand to freeze and cause leaks therein in the winter.

The invention consists generally in various constructions andcombinations, all as hereinafter described, and particularly pointed outin the claims.

In the accompanying drawings, forming part of this specification, Figure1 is a vertical sectional view of an exhaust-head embodying myinvention. Fig. 2 is ahorizontal section on the line :0 w of Fig. 1.

In the drawings, 2 represents a cylindrical casing having a closedhopper-shaped bottom 3 and an open top 4, that is surrounded,preferably, by a flanged ring 5. The bottom 3 has a discharge-hole 6 forthe water that accumulates within the head, and a pipe 7 is arranged toreceive the water of condensation that collects in the bottom of thehead.

9 is a pipe-section centrally arranged in the bottom 3 and projectingabove the same and having a threaded lower end for convenience inattaching the apparatus to the end of an exhaust-pipe. Above the openupper end of the pipe 9 and centrally arranged with respect to thecasing 2 is a conical member 10, supported on an elbow 11, that issecured to the wall of the casing by braces 12 and 13. The opposite endof the elbow depends to a point near the bottom 3 and discharges thesteam and the water of condensation into the space near and above saidbottom.

The operation of the device is as follows: The exhaust-steam flowing inthrough the pipe 9 will enter the conical member 10, and engaging theflaring walls thereof a portion of the water will be separated from thesteam and precipitated upon the floor 3. The steam flowing on andentering the elbow 11 will contact with the wall thereof and a furtherseparation of the water and steam will take place. The steam will thenflow down through the depending end of the elbow and out of its openlower end and then rise to the top of the casing and be dischargedtherefrom into the open air.

During the time that the steam is passing through the members 10 and 11a very large percentage of the water will be separated therefrom andprecipitated upon the bottom of the casing, and from thence it will flowback through the pipe 7 into the heater, and the steam discharged at thetop of the casing will be practically dry, and there will be no moistureon the roof around the exhaust-head to rot the roof in summer and causeit to freeze and become leaky during the winter.

I am aware the exhaust-heads have been heretofore patented for this samepurpose, having devices for causing the steam to follow a tortuous pathfrom the time it enters the head until the time it is dischargedtherefrom, and hence I make no claim, broadly, to such an apparatus.

My invention consists in the conical member arranged above thesteam-inlet pipe and connected to one arm of an elbow, whose other armis downwardly turned and arranged to discharge the steam into the lowerportion of the apparatus.

I claim as my invention 1. An exhaust-head comprising a casing having anopen top and a hopper-bottom provided with a water-discharge opening, anintake-pipe leading into said casing through said bottom and extendingabove the level of said discharge-opening, a conical cap or headprovided above the open end of said pipe within said casing and near thesame, and a U-shaped pipe having one end connected to said cap and theother end depending to a point near said hopper-bottom.

2. An eXhau st-head-com prising a cylindrical casing having an open topand a bottom provided with a water-discharge opening, an in take-pipeleading into said casing through said bottom and extending above thelevel of said discharge-opening, a conical cap provided over the openend of said pipe and near the same and of greater diameter at its lowerend than the top of said pipe, and an elbow \v1thin said casing havingits short arm connected to the upper end of said cap and its long armdepending below said cap to a point near said bottom.

An exhaust-head. comprising a casing having an open top and a bottomprovided with a water-disoharge opening, an intakepipe leading into saidcasing through said bottom and extending above the level of saiddischarge-opening, a conical cap having an open upper end provided abovethe open end of said pipe and near the same, and a U-shaped pipe havingone end adapted to fit the open end of said cap and gradually decreasingin diameter toward its other end and terminating near said bottom belowsaid cap, substantially as described.

In witness whereof I have hereunto set my hand this 20th day ofNovember, 1903. v FRANK M. OVERHOLT. in presence of- RICHARD PAUL, M.HAGERTY.

